ABSTRACT
This chapter focuses on the d-q model applied to starting and load transients for the single-phase source induction machine (IM) via a MATLAB program. Single-phase induction motors undergo transients during starting, load perturbation or voltage sags, and so on. To investigate the transients, for orthogonal stator windings, the cross-field model in stator coordinates is traditionally used. In the absence of magnetic saturation, the motor parameters are constant. A complete theory of single-phase IM, valid for both steady state and transients, may be approached only by a finite element modelling-circuit-coupled model, yet to be developed in an elegant computation-time competitive software. The existence of space harmonics causes torque pulsations, cogging, and crawling. The space harmonics have three origins: stator mmf space harmonics, slot opening permeance pulsations, and main flux path saturation. H. A. Toliyat and N. Sargolzaei examines that space harmonics are produced by the stator mmf, and can be dealt with the effect of skewing.
